I am most familiar with alternative motor vehicle fuels (electricity, natural gas, alcohols, etc.), and am best prepared to answer questions with a practical, end-user focus. I can also discuss technical aspects at a "hobbyist" (rather than professional) level, and am somewhat familiar with alternative energy sources (wind, solar, etc.) for applications other than the transportation market. I am not all that well versed in the economics or policy aspects of the subject, except as they affect end users (prices at the pump, tax incentives); and I am _definitely_ not the person to ask for help in promoting a 100-MPG Super-Atomo carburetor or a "free energy" machine!
I have owned natural-gas-powered trucks since 1993, and in 1998 I began promoting alternative fuels by means of a website (http://www.altfuels.org/) and a journey "Clean Across America And Back," from Los Angeles to Maine and back in my natural-gas-powered van. Since then I have kept up with new vehicles available for sale or lease and with other developments in the field, and have posted occasional reports to the website on auto shows, alternative-fuel events, or vehicle road tests.
Most of my "publication" effort has been focused on the website, http://www.altfuels.org/, that I mentioned above; I have also written a number of letters to my local newspaper, and (especially in connection with "Clean Across America And Back") have been quoted in that and several other newspapers, TV news reports, alternative-fuel publications, etc.
A.B. (1985) from Princeton University, M.S. (1989) and Ph.D. (1993) from the California Institute of Technology; my degrees were all in Physics, so I have a technical background, but no specific training in alternative energy.